Energy and charge conservation during photo capacitance-voltage

The ability to evaluate light energy conversion into electrical energy during capacitance-voltage (photo C-V) is important for developing solar cells. Before this work, unfortunately reliable and accurate energy prediction during photo C-V is impossible due to lack of basic and reliable methodology that correctly estimates energy storage in junction capacitor. To achieve this goal, a novel and basic physics model that describe energy storage in solar cells junction capacitor is first established in here, and model of photo C-V is reckoned via the solution to a differential equation by combining with experimental results. The capability of the photo C-V model to portray C-V characters was tested by validation on experimental data and matched to experimental data. With rudimentary model of energy storage in junction capacitor and this photo C-V model, the energy and charge conversion as function of light energy and voltage during photo C-V was successfully estimated. Besides, the quantitative relationship between monochromatic light energy and energy as well as charge conversion is clearly explained by the author. It can be concluded that the successful application of the proposed methodology will provide significant impetus to future studies on solar cells junction capacitor in the field of micro-power generation. (C) 2020 Elsevier Ltd. All rights reserved.

Automated summary

A novel physics model describing energy storage in solar cells junction capacitor is established, and a photo C-V model is developed via a differential equation solution combined with experimental results, successfully estimating energy and charge conversion during the process. The quantitative relationship between monochromatic light energy and energy as well as charge conversion is clearly explained by the author.